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Macro or Close-up
Posted By: metalfab, 03-21-2008, 05:22 PM

Just playing with the DA 18-250 today and decided to try something different with it. The front of the camera lens was about 12" from the penny.

RAW
Manual Mode
Focal Length 250 mm
Exposure Time 1/125 sec
Aperture f/8
ISO Equivalent 400
100% crop (880 x 850)

Would you consider this a macro or a close-up? I'm thinking the latter since this lens is not a true macro.


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03-21-2008, 05:58 PM   #2
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I tend to think of 1:1 as true macro and ratios less than that would be close-up. Closer than 1:1 could be considered micro. I don't think the 18-250mm lens is a true macro but I must say you have certainly done a fine job on the penny picture.
03-21-2008, 06:02 PM   #3
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Nice shot. I think we have a mac-up ! But I agree with Jeff just a very well taken close up.
03-21-2008, 06:23 PM   #4
Igilligan
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It is a great penny shot... Mac or not. How much did you crop it?

03-21-2008, 06:48 PM   #5
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Thanks all for the comments I'll try a few more interesting subjects, if I can find them .

Igilligan;
The image (880x850) you see is a full sized crop from the original, not resized at all.

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03-21-2008, 06:50 PM   #6
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usually don't people add their 2 cents worth, I think you are a penny short

Good shot by the way, and now for my 2 cents worth.

if this is a pure crop, and is 880 by 850 pixles out of a K100, then the penny looks to be about 750 pixles in diameter.

since the K100 is a 3000 x 2000 sensor in a 16 x 24 mm format (approximate) I would guess the image of the penny is about 6-7mm in diameter on the sensor.
A penny is 19mm in diameter, therefore it is 1/3 life size.

By true definition, this is not macro but close up photography, macro would have the penny more than filling the 16mm dimension of the frame./
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